image-optimization.yml

name: Optimize Images

on:
  push:
    branches:
      - main
    paths:
      - "static/images/**"
      - "!static/images/optimized/**"
      - "!static/images/backup/**"
  pull_request:
    branches:
      - main
    paths:
      - "static/images/**"
      - "!static/images/optimized/**"
      - "!static/images/backup/**"

permissions:
  contents: write

defaults:
  run:
    shell: bash

jobs:
  optimize-images:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.MY_GITHUB_TOKEN }}
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: "3.11"

      - name: Cache pip dependencies
        uses: actions/cache@v3
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-image-optimization-${{ hashFiles('tools/image-optimization/requirements.txt') }}
          restore-keys: |
            ${{ runner.os }}-pip-image-optimization-

      - name: Install dependencies
        run: |
          # Install jq for JSON parsing
          sudo apt-get update && sudo apt-get install -y jq

          # Install Python dependencies
          python -m pip install --upgrade pip
          pip install -r tools/image-optimization/requirements.txt

      - name: Run image optimization
        run: |
          echo "开始图片优化..."
          python tools/image-optimization/image_optimizer.py \
            --input-dir static/images \
            --output-dir static/images/optimized \
            --quality 85 \
            --sizes 320 640 960 1280 1920 \
            --no-backup

      - name: Check for changes
        id: verify-changed-files
        run: |
          if [ -n "$(git status --porcelain static/images/optimized/)" ]; then
            echo "changed=true" >> $GITHUB_OUTPUT
            echo "检测到图片优化变化"
          else
            echo "changed=false" >> $GITHUB_OUTPUT
            echo "没有图片需要优化"
          fi

      - name: Commit optimized images
        if: steps.verify-changed-files.outputs.changed == 'true'
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'

          git add static/images/optimized/
          git commit -m "🔧 优化图片: 自动生成WebP格式和响应式尺寸" -m "生成多尺寸图片 (320px, 640px, 960px, 1280px, 1920px)" -m "转换为WebP格式以减少文件大小" -m "应用智能压缩 (质量: 85%)" -m "此提交由GitHub Actions自动生成"

          echo "图片优化完成并提交"

      - name: Push changes
        if: steps.verify-changed-files.outputs.changed == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.MY_GITHUB_TOKEN }}
        run: |
          git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/${{ github.repository }}.git

          # 智能推送逻辑
          if [[ "${{ github.ref_name }}" == "main" ]]; then
            echo "Pushing to main branch"
            git push origin main
          elif [[ "${{ github.event_name }}" == "pull_request" ]]; then
            echo "Pull request detected, pushing to source branch instead"
            # 获取PR的源分支名
            SOURCE_BRANCH=$(curl -s -H "Authorization: token $GITHUB_TOKEN" \
              https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.number }} | \
              jq -r '.head.ref')
            echo "Source branch: $SOURCE_BRANCH"
            if [[ "$SOURCE_BRANCH" != "null" && "$SOURCE_BRANCH" != "" ]]; then
              git push origin HEAD:$SOURCE_BRANCH
            else
              echo "Could not determine source branch, skipping push"
            fi
          else
            echo "Pushing to current branch"
            git push origin HEAD:${{ github.ref_name }}
          fi

          echo "推送优化后的图片到仓库"